Finding the Fourth Proportional to 421,455.35, 581,610.27 and 230,468.49
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Solution
The fourth proportional to 421,455.35, 581,610.27 and 230,468.49 is: 318,047.55
Step by Step Solution
- Step 1: Write the proportion equation
421,455.35 : 581,610.27 = 230,468.49 : x - Step 2: Convert to fraction form
421,455.35/581,610.27 = 230,468.49/x - Step 3: Cross multiply
421,455.35x = 581,610.27 × 230,468.49 - Step 4: Simplify right side
421,455.35x = 134,042,841,559.65 - Step 5: Solve for x
x = 134,042,841,559.65/421,455.35 - Step 6: Final answer
x = 318,047.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.